US4415048A - Weight measuring, price computing and packing apparatus - Google Patents

Weight measuring, price computing and packing apparatus Download PDF

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Publication number
US4415048A
US4415048A US06/236,721 US23672181A US4415048A US 4415048 A US4415048 A US 4415048A US 23672181 A US23672181 A US 23672181A US 4415048 A US4415048 A US 4415048A
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Prior art keywords
commodity
section
printing
weight measuring
label
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US06/236,721
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English (en)
Inventor
Kazuharu Teraoka
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TERAOKA SEIKOSHO COLTD
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TERAOKA SEIKOSHO COLTD
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Publication date
Priority claimed from JP2360180A external-priority patent/JPS56123232A/ja
Priority claimed from JP14706180A external-priority patent/JPS5777433A/ja
Priority claimed from JP15273180A external-priority patent/JPS5777431A/ja
Priority claimed from JP15273080A external-priority patent/JPS5777435A/ja
Application filed by TERAOKA SEIKOSHO COLTD filed Critical TERAOKA SEIKOSHO COLTD
Assigned to TERAOKA SEIKOSHO CO.LTD. reassignment TERAOKA SEIKOSHO CO.LTD. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: TERAOKA KAZUHARU
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C1/00—Labelling flat essentially-rigid surfaces
    • B65C1/02—Affixing labels to one flat surface of articles, e.g. of packages, of flat bands
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/40—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight
    • G01G19/413—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G23/00—Auxiliary devices for weighing apparatus
    • G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
    • G01G23/38—Recording and/or coding devices specially adapted for weighing apparatus
    • G01G23/42—Recording and/or coding devices specially adapted for weighing apparatus electrically operated

Definitions

  • the present invention relates to an apparatus which comprises a commodity packing device, a weight measuring device, and a printing and labelling unit. More particularly, the apparatus relates to a combination weight measuring, price computing and packing apparatus for packing a desired commodity by conveying a commodity to a packing section through an inlet passage, automatically packing it at the packing section, and thereafter displacing the thus-packed commodity to an outlet passage where required data concerning the commodity, such as weight, unit price, selling price, data of processing, date of availability, tare weight, commodity number, bar code, and other information, are printed on a label; the printed label is then adhesively stuck on the commodity.
  • data concerning the commodity such as weight, unit price, selling price, data of processing, date of availability, tare weight, commodity number, bar code, and other information
  • Known weight measuring and labelling printers or label printers normally comprise a weight measuring unit, by which the weight of a commodity is measured, and a printing mechanism, in which a printing operation is performed in accordance with input data received from the weight measuring unit. Accordingly, both the weight measuring unit and the printing mechanism are closely located or integrally built together.
  • the first object of the present invention is to provide a weight measuring, price computing, and packing apparatus which ensures reduced manpower and improved workability and productivity by conducting a variety of operations, such as commodity displacement, weight measuring, and readjustment of input data, with a single operator. This is accomplished by conducting a series of operations, including commodity displacement, weight measuring, and readjustment of input data, only at the inlet side of the apparatus; such an arrangement results in a small apparatus, which integrally incorporates a packing machine, a label printer, and other elements.
  • a weight measuring, price computing and packing apparatus in accordance with the present invention comprises a weight measuring unit arranged along the inlet passage of the apparatus for the purpose of weighing a commodity, and a printing and labelling unit arranged along the outlet passage of the apparatus for printing required data on a label and for then sticking the printed label on the packed commodity.
  • the printing section of the printing and labelling unit is connected to the weight measuring unit to permit the printing operation to be performed in accordance with the input data.
  • the commodity packing device employed in practicing the present invention is a packing machine in which a commodity is packed in a relatively narrow packing section.
  • the commodity is packed with the use of a so-called stretch film, which has excellent characteristics, and by an automatic packing device in which the commodity is packed during movement through a packing line which comprises a packing section or like device.
  • a label is used as display means, on which all or part of relevant data such as unit price, weight, selling price, date of processing, date of availability, tare weight, commodity name, bar code, and other data are printed.
  • the label may be a price tag, on which just the selling price is printed, or may include a part on which a shop name and other data are preliminarily printed.
  • the weight measuring unit comprises a weight measuring section and an input control section, on which unit price, date of processing, date of availability, and other data are considered and controlled in the input control section, while the commodity weight and price are inputted into the weight measuring section.
  • the commodity name which may be prepared by exchanging rubber stamps or like apparatus in the printing section.
  • the commodity name is less frequently exchanged, particularly where a large number of commodities are packed with a single commodity name, or in cases which previously printed labels are used, little trouble occurs.
  • the operator is required to walk to the printing section located at the outlet passage in order to perform commodity name exchanging operations. This results in inefficient operation.
  • the second object of the present invention is to provide a weight measuring, price computing, and packing apparatus which ensures further improved workability by inputting commodity name data into the weight measuring unit, the commodity name data having previously been exchanged in the printing section.
  • the weight measuring, price computing, and packing apparatus of the present invention has a commodity name input means on the weight measuring unit, so that a specific commodity name will be printed on a label, together with other data, in accordance with input data in the commodity name input means of the printing section of the printing and labelling unit.
  • the commodity name input means is constructed so that a cassette with the commodity name contained therein is removably inserted in an opening of the weight measuring unit, and the required commodity name is optically read from the inserted cassette and transmitted to the printing section.
  • ten keys on the input control section are operated to electrically call up the required commodity name via a typing operation.
  • a commodity can be displaced from the weight measuring unit onto the inlet passage of the packing section by having an operator place the commodity onto the inlet passage by hand. However, it is preferable if the commodity is automatically transferred onto the inlet passage from the weight measuring section, after a certain period of time has elapsed after weighing is completed.
  • the third object of the present invention is to provide a weight measuring, price computing and packing apparatus which achieves successive packing operations with improved workability by automatically transferring the commodity onto the inlet passage after completion of weighing at the weight measuring unit.
  • the weight measuring, price computing, and packing apparatus of the present invention has a mechanical conveying means for transferring the weighed commodity onto the inlet passage.
  • the mechanical conveying means is adapted to be operated in association with the weight measuring operation of the weight measuring unit.
  • the mechanical conveying means comprises a commodity conveying device, such as a pusher, which is adapted to reciprocally move or turn with respect to a belt conveyor or like device, incorporated in the weight measuring section, in order to convey the commodity to the inlet passage beyond the weight measuring section of the weight measuring unit.
  • the commodity conveying device operates in association with the weight measuring operation of the weight measuring section when a weight measuring operation completion signal, such as a weight measuring stabilizing signal, computing operation completion signal, or like signal, is issued.
  • the packing section of the apparatus has limitations with regards to dimensions of a commodity to be packed, such as height, length, or the like.
  • dimensions of a commodity to be packed such as height, length, or the like.
  • the apparatus would fail to initiate packing, label printing, and other operations. As a result, no price computing and packing would be effected on the commodity.
  • the fourth object of the present invention is to provide a weight measuring, price computing and packing apparatus which has excellent versatility and workability, without the drawbacks described above.
  • the weight measuring, price computing, and packing apparatus of the present invention is characterized by the fact that one or more weight measuring sections are arranged separately, in addition to the weight measuring section in the weight measuring unit, and a switching means is provided for switching operation to any of these weight measuring sections.
  • the measuring section to which operations are switched then undertakes all or part of the given functions, such as weight measuring, computing, packing, label printing, and label sticking.
  • Electronically operated scales are employed for the weight measuring sections.
  • the scales have the same weighing range as that of the weight measuring section in the weight measuring unit, or the scales have a weighing range in excess of the preset weighing range of the weight measuring unit.
  • the weight measuring sections to which operations may be switched are located in the vicinity of the main weight measuring section and/or in the vicinity of the printing and labelling unit.
  • the switching means is constructed in the form of a circuit or device with a switch or like device incorporated therein. More particularly, a switch for the purpose of switching operations is fitted in the input control section, so as to switching operation to any of the weight measuring sections. Alternatively, the input control section or the printing and labelling unit is constructed in such a manner so as to swing at a certain angle, so that the swinging portion constitutes a switch.
  • the switching circuits be put into use in an allocated order of priority.
  • weight measuring sections to which operations may be switched are in use, it is unnecessary for the apparatus to undertake all of the functions described above. It may perform only a part of them, for instance, only weight measuring, or only weight measuring and label preparing, or only weight measuring, label printing, and label sticking.
  • the weight measuring section of the weight measuring unit is constructed in such a way that, for tare weight subtraction, a prohibited range exists in which no operating signal can be issued to motivate the commodity conveying device, irrespective of any weight measuring operation completion signal issued, insofar as small weight values are concerned (e.g., 20 g. or 0.20 lbs.).
  • a prohibited range exists in which no operating signal can be issued to motivate the commodity conveying device, irrespective of any weight measuring operation completion signal issued, insofar as small weight values are concerned (e.g., 20 g. or 0.20 lbs.).
  • an operating signal is outputted whereby the conveying operation of the commodity conveying device, the packing operation of the packing section, and/or the label sticking operation of the printing and labelling unit are initiated prior to weighing the commodity; in other words, the operating signal is outputted when measuring the tare weight.
  • the fifth object of the present invention is to provide a weight measuring, price computing and packing apparatus which achieves perfect prevention of malfunctions, such as useless operation of packing only a tare, label preparation, and others, and which ensures excellent workability and maneuverability.
  • the weight measuring, price computing, and packing apparatus of the present invention includes a switch section in the input control section of the weight measuring unit for prohibiting any output of the operating signal by the control mechanism or other devices so that any conveying operation of the printing and labelling unit or packing section will be prohibited by operating the switch section when measuring the tare weight or the like.
  • Release from the prohibited condition of the switch section may be effected by the manual operation of returning the switch to the original position, by the manual operation of depressing a momentary switch twice, or in accordance with the operation of an automatic system in which a weight measuring stabilizing signal is employed to measure the tare weight or the like.
  • the apparatus is provided with a printing and labelling unit in which a label is printed and the printed label is automatically stuck onto a packed commodity.
  • a mechanical system in which a plunger is operated or an air stream is blown is usually employed.
  • the sixth object of the present invention is to provide a weight measuring, price computing, and packing apparatus which is entirely free of the drawbacks described above.
  • the weight measuring, price computing, and packing apparatus of the present invention automatically detects the height of a commodity relative to a reference face, and alerts the printing and labelling unit, which is automatically corrected relative to its location in the vertical direction.
  • the printed label is adhesively stuck at a constant distance at all times, with less of a change of causing incorrect label sticking, and the printed label is stuck exactly at a predetermined location.
  • the seventh object of the present invention is to provide a weight measuring, price computing, and packing apparatus which ensures exact and correct label sticking at a predetermined position on a packed commodity.
  • the weight measuring, price computing, and packing apparatus of the present invention has a pair of guide plates arranged along the outlet passage of the apparatus behind the packing section and in opposed spaced relation to it, in order to correctly locate the packed commodity in the transverse direction relative to the outlet passage. This allows the commodity to come into contact with one of the guide plates, while a sensor detects the movement of the packed commodity, so that the printing and labelling unit is operated when a certain period of time elapses after the detecting signal is issued.
  • the eighth object of the present invention is to provide a weight measuring, price computing, and packing apparatus which ensures exact and correct label sticking by temporarily stopping the commodity only during the movement through the guide plates.
  • the printing and labelling unit is constructed with a totalling memory which performs an addition operation by adding required commodity data transferred thereto, such as weight, price, and number of packed commodities, in an itemwise manner.
  • Conventional label printers are designed so that the totalling memory would perform the addition operation at the same time that the printing operation is effected.
  • a conventional label printer is applied to the apparatus of the present invention as is, a label, in order to be adhesively stuck, is prepared by the printing and labelling unit, and then the content of the printed label added to the totalling memory.
  • the ninth object of the present invention is to provide a weight measuring, price computing, and packing apparatus which is entirely free of the drawbacks described above.
  • the weight measuring, price computing, and packing apparatus of the present invention is characterized by the fact that when no packed commodity stays in the predetermined label sticking position, the totalling memory is prohibited from performing any addition operation, irrespective of motivation from the printing and label sticking operation. As a result, improved totalling accuracy and workability are ensured for the printing and labelling unit.
  • the tenth object of the present invention is to provide a weight measuring, price computing, and packing apparatus which ensures further improved totalling accuracy and workability by prohibiting the addition operation of the totalling memory, even when no printed label is prepared in the predetermined position on the printing and labelling unit due to erroneous displacement of the printed label or the like malfunction.
  • FIG. 1 is a perspective view of a weight measuring, price computing, and packing apparatus in accordance with the present invention
  • FIG. 2 is a vertical sectional view of the apparatus of FIG. 1, schematically illustrating the process of operation thereof;
  • FIG. 3 is a block diagram of the apparatus of FIG. 1;
  • FIG. 4 is a perspective view of a weight measuring, price computing, and packing apparatus in accordance with a modified embodiment of the present invention
  • FIG. 5 is a vertical sectional view of a printing and labelling unit of the apparatus, shown in an enlarged scale;
  • FIGS. 6 and 7 are top plan views of commodity detecting means in accordance with modified embodiments of the invention.
  • FIG. 8 is a front view of a sample printed label
  • FIG. 9 is a flow chart illustrating operation of the apparatus during weight measuring of a tare
  • FIG. 10 is a plan view of the apparatus in which the weight measuring unit is constructed in accordance with a modified embodiment of the invention.
  • FIG. 11 is a block diagram of the apparatus of FIG. 10;
  • FIG. 12 is a plan view of the apparatus in which the switching means is constructed in accordance with another embodiment of the invention.
  • FIG. 13 is a block diagram of the apparatus of FIG. 12;
  • FIG. 14 is a cross-sectional front view of a commodity height detecting means located along an outlet passage of the apparatus;
  • FIG. 15 is a side view of commodity height detecting means in accordance with a modified embodiment of the invention.
  • FIG. 16 is a perspective view of a unit adjustment means
  • FIG. 17 is a perspective view of the unit adjustment means of FIG. 16 in accordance with a modified embodiment of the invention.
  • FIG. 18 is a perspective view of an improved labelling means.
  • FIG. 19 is a perspective view of a labelling means in accordance with a modified embodiment of the invention.
  • reference symbol A designates a packing section
  • reference signal b designates a commodity inlet passage
  • reference symbol b' designates a packed commodity outlet passage.
  • Reference numeral 1 designates a weight measuring unit
  • reference numeral 30 designates a printing and labelling unit.
  • Packing section a is constructed such that commodity 100 is conveyed by way of inlet passage b, and automatically packed in stretchable film 104 to form packed commodity 100', which is then automatically taken out by way of outlet passage b'.
  • commodity 100 is shown moving through the apparatus while being carried on tray 102.
  • inlet passage b and outlet passage b' are in the form of conveyor belts.
  • Inlet passage b extends between weight measuring section 10 of weight measuring unit 1 and packing section a.
  • Outlet passage b' extends between packing section a and printing and labelling unit 30.
  • Weight measuring unit 1 essentially comprises weight measuring section 10 and input control section 20, the input control section 20 having control mechanism 22 incorporated therein and connected to weight measuring section 10, packing section a, and printing and labelling unit 30, respectively, in order to control their operations.
  • Weight measuring section 10 is intended to measure the weight of commodity 100 on scale tray 102 and its data concerning the weight of the respective commodity is converted into a specific electrical signal, which is in turn transferred as an input to control mechanism 22. Further, as weight measuring becomes stabilized, a weight measuring stabilizing signal P is transmitted therefrom, and may be transmitted directly from weight measuring section 10, or may be transmitted in the form of an output from computing section 221 in control mechanism 22, which is adapted to operate in accordance with the given weight data.
  • commodity 100 is displaced onto commodity inlet passage b by the operator, or is displaced mechanically and automatically by a pusher, which is designed to extend over weight measuring section 10 and along inlet passage b, or by conveying means 14 such as a belt conveyor or the like incorporated in weight measuring section 10.
  • conveying means 14 is actuated by control mechanism 22 when weight measuring stabilizing signal P is issued, whereby commodity 100 is displaced along inlet passage b.
  • input control section 20 contains control mechanism 22, incorporated therein, and also has number keys (ten) and other input keys, a power switch, and other controls arranged on the surface of input control section 20 so that required commodity data, such as commodity name, commodity code number, unit price, date of manufacture of commodity concerned, expiration date of availability of the commodity, tare weight, bar code number, and other data, are supplied to control mechanism 22 in the form of an input.
  • input control section 20 contains preset section 24 and display section 26, in which data such as unit price, weight, price, and other data are displayed in a digital manner. Preset section 24 is adapted to cause the above-mentioned commodity data to pass through to control mechanism 22 via operation of the appropriate keys.
  • reference numeral 27 designates a tare weight measuring switch
  • reference numeral 28 designates an opening through which a commodity name cassette is inserted
  • reference numeral 24' designates an automatic conveying switch in case conveying device 14 is in use
  • reference numeral 24" designates a manual conveying switch in case the conveying device is not in use.
  • Control mechanism 22 essentially comprises computing section 221, in which data concerning commodity weight supplied from weight measuring section 10, and data concerning the unit price of the commodity, supplied from preset section 24, are processed to compute a selling price; storage section 222, in which data concerning commodities and prices are stored; and control section 223, from which operation command signals are issued to conveying device 14, printing and labelling unit 30, and others. Further, totalling memory 224 is connected to control mechanism 22, or is incorporated in the same.
  • a variety of commodity data stored in storage section 222 are selectively transferred to printing and labelling unit 30 when a specific packed commodity 100' is detected by means of a commodity detector, which will be described later.
  • Input control section 20 is mounted on the upper surface of apparatus A in the vicinity of weight measuring section 10 (see FIGS. 1 and 2). Alternatively, it may be located by weight measuring section 10 and parallel thereto, as illustrated in FIG. 4.
  • Printing and labelling unit 30 comprises a label printer which is fixedly mounted in position about outlet passage b', with the aid of support frames 31.
  • the label printer essentially comprises printing section 32 and automatic labelling device 34.
  • Printing section 32 is constructed in such a manner that a strip of label base paper 35, with a number of equally spaced labels 110 removably adhered thereto, is intermittently unreeled from base paper roll 35'.
  • Label base paper 35 passes through dispenser 36, and is received around reeling roll 37.
  • Printing head 38 and label position detector 39 are arranged along the path to reeling roll 37.
  • printing section 32 is constructed such that, when certain required commodity data stored in storage section 222 of control mechanism 22 are transferred in accordance with a printing command signal issued from control section 223, label 110 is printed by printing head 38, printed label 110 is automatically peeled off from label base paper 35 when label base paper 35 begins to move in reverse at dispenser 36 and toward reeling roll 37, and then label 110 is displaced below adhesive sticking device 34.
  • Printing head 38 may comprise any dot print-type printing heads, such as a conventional wire dot-type printing head, a thermal head, or the like.
  • Adhesive sticking device 34 is located in the vicinity of dispenser 36 in such a manner that its height is adjusted in the vertical direction, as required. Further, it has suction surface 40 at its bottom, through which air is sucked by a reduced pressure caused by means of a fan (not shown), and is also equipped with sticking nozzle 41, which is designed to blow an air flow for a certain period of time with force in excess of the suction force generated by the reduced pressure.
  • Adhesive sticking device 34 is constructed such that printed label 110 is displaced from printing section 32; it is held below suction surface 40 and is then adhesively stuck onto packed commodity 100' by blowing air from nozzle 41 in the downward direction, in accordance with a label sticking command signal issued by control mechanism 22.
  • adhesive sticking device 34 is equipped with label detector 42 in the vicinity of sticking nozzle 41.
  • Label detector 42 is intended to optically detect whether printed label 110 is held below suction surface 40.
  • label detector 42 is adapted to check the existence of printed label 110 in adhesive sticking device 34 and transmit label detecting signal P 2 to control mechanism 22 when recognizing the existence of printed label 110.
  • a set of commodity detectors 44 are arranged which detect the existence of packed commodity 100', commodity detectors 44 being connected to control mechanism 22.
  • commodity detector 44 is designed as a photoelectric detecting system, comprising light transmitter 45 and light receiver 46.
  • light transmitter 45 When packed commodity 100' reaches commodity detector 44 below adhesive sticking device 34, it is effective in detecting the existence of packed commodity 100', and commodity signal P 3 is thereby transmitted to control mechanism 22.
  • commodity detector 44 may be constructed of plural sets of light transmitters 45 and light receivers 46 so that packed commodity 100' can be detected and located in a predetermined area. Alternatively, it may be replaced by a mechanical switch which is operated by contact against packed commodity 100', as illustrated in FIG. 7.
  • Control mechanism 22 is such that, upon receipt of weight measuring stabilizing signal P from weight measuring section 10, operation signal Q is issued from control section 223 to actuate commodity conveying device 14; on receipt of commodity detecting signal P 3 from commodity detector 44, operating signal Q 2 is issued from control section 223 to storage section 222 to transfer required commodity data from storage section 222 to printing section 32; and operating signals Q 3 and Q 3 ' are issued to printing and labelling unit 30 to carry out printing and sticking operations on label 110.
  • control mechanism 22 is such that, on receipt of both label detecting signal P 2 and commodity detecting signal P 3 , operating signal Q 4 is issued from control section 223 to effect the memory addition operation in totalling memory 224.
  • the memory addition operation is effected in such a manner that total weight, price, and the number of commodities to be transferred from storage section 222 to printing section 32 are itemwise calculated.
  • the actuating operation of packing section a may be controlled by control mechanism 22, or, alternatively, may be effected in synchronization with control mechanism 22 by providing a separate control mechanism for packing section a.
  • an operator starts apparatus A, and then inputs various data concerning a commodity 100 to be measured, such as unit price, date of manufacture, expiration date of availability, bar code data, and other data to control mechanism 22 by operating keys on preset section 24 of input control section 20 in weight measuring unit 1, whereby the data are stored in storage section 222. Then he places commodity 100 on weight measuring section 10, commodity 100 being located in tray 102, and data concerning the weight of commodity 100 is thereby transmitted into computing section 221 of control mechanism 22, in which a price is processed and computed on the basis of the weight data with reference to data concerning unit price. As a result, the respective data are displayed on display section 26.
  • measuring stabilizing signal P is transmitted into control mechanism 22, and at the same time current price data are stored in storage section 222.
  • display section 26 achieves a stable display, and, as a result, it is maintained at a constant value.
  • control section 223 On receipt of the output of weight measuring stabilizing signal P, control section 223 causes commodity conveying device 14 to be actuated so that measured commodity 100 is automatically displaced from weight measuring section 10 onto inlet passage b, and is then delivered to packing section a by means of the conveyor belt in inlet passage b.
  • Commodity 100 is delivered to packing section a, and is automatically packed in stretchable film 104 by the packing mechanism; thereafter, packed commodity 100' is displaced onto outlet passage b'. Then it is transferred below printing and labelling unit 30 with the aid of the belt conveyor in outlet passage b'.
  • control section 223 outputs both operating signals Q 2 and Q 3 by input of commodity detecting signal P 3 , but alternatively, operating signals Q 2 and Q 3 may be outputted by input of weight measuring stabilizing signal P.
  • the process may be so constructed that storage section 222 successively stores data concerning a plurality of commodities (for instance, four pieces).
  • weight measuring stabilizing signal P causes the foremost data of storage section 222 (the data concerning the commodity which is located at the packing section or the output passage) to be shifted and transferred to printing section 32, in which label 110 is printed and held on suction surface 40 of adhesive sticking device 34. Then, when packed commodity 100' is detected by commodity detector 44, the label sticking operation is performed by means of an air jet from nozzle 41, which is motivated by operating signal Q 3 .
  • the period of time for data transfer from storage section 222 for conveying device 14 to be motivated may be such that computing section 221 calculates a price on the basis of the weight data transmitted, together with weight measuring stabilizing signal P, and control section 223 outputs operating signals Q 2 and Q 3 by the input of calculation completion signal P', which is outputted after completion of calculation.
  • operating signal Q 4 by which totalling memory 224 is operated, is adapted to output by the input of both label detecting signal P 2 and commodity detecting signal P 3 , but in case that data transfer and printing operations are performed by the output of weight measuring stabilizing signal P, as described above, operating signal Q 4 of totalling memory 224 outputs only by commodity detecting signal P 3 .
  • operating signal Q 4 may output by both detecting signals P 2 and P 3 .
  • totalling memory 224 is operated in the above-described manner, there is no possibility that memory addition is performed immediately after data is transferred from storage section 222. Thus, it is ensured that no memory addition is performed until label 110 is correctly stuck onto packed commodity 100', without any trouble, during movement of the packed commodity and any wrong displacement of the label; thereby, addition of unnecessary data is effectively prevented, wrong values are excluded from the totalling memory, and, as a result, correct totalling data are achieved.
  • control section 223 in control mechanism 22 fails to output operating signal Q 4 to totalling memory 224, an alarm buzzer, lamp, or other alarm means may be actuated so that the operator recognizes the existence of the abnormal condition, or, alternatively, printing and labelling unit 30 may come to a stop.
  • the commodity name input means essentially comprises commodity name cassette 50, adapted to be inserted into cassette insert opening 28, and film pattern reading mechanism 52, by means of which commodity names marked in the inserted cassette can be optically read.
  • film pattern reading mechanism 52 comprises a light source, located in position above inserted cassette 50, and a photoelectrical converter adapted to receive reflected light from the printed surface of cassette 50, the photoelectrical converter being connected to control mechanism 22.
  • the photoelectrical converter becomes effective in receiving the reflected light from the printed surface of cassette 50, on which a specific commodity name is marked. Then, the received darkness pattern is converted into electrical signals, which are in turn delivered to control mechanism 22 to be stored in storage section 222, together with other input data. Additionally, the stored data are transmitted into printing section 32 by way of data transfer, so that the data are printed on label 110.
  • the commodity name input means may be constructed in alternate embodiments.
  • One embodiment uses numeral keys in preset section 24 of input control section 20, which are put into use in such a manner that a predetermined number corresponding to the commodity name concerned is called up by keying in the number, and then the commodity name is inputted into storage section 222; in another embodiment, the commodity name keys, with specific commodity names marked thereon, are arranged in preset section 24, and the required commodity name is inputted by way of a typing operation.
  • FIG. 8 An example of printed label 110 is illustrated in FIG. 8.
  • Tare weight measuring switch 27 is connected to control section 223 in control mechanism 22.
  • prohibit signal R is outputted to control section 223, whereby the output of operating signals Q, Q 2 , and Q 3 are issued from control section 223 and are kept in a prohibited condition.
  • tare weight measuring switch 27 is turned off, the tare weight subtraction operation is initiated. Specifically, data concerning the tare weight obtained at weight measuring section 10 are inputted into storage section 222, and at the same time prohibit signal R is released.
  • prohibit signal R may be automatically released with the aid of weight measuring stabilizing signal P, issued from weight measuring section 10, during the measuring of the tare weight. In this case, the tare weight subtraction operation is performed when weight measuring stabilizing signal P, from weight measuring section 10, is inputted into control section 223, and at the same time prohibit signal R is automatically released.
  • switch 27 by modifying the interior arrangement of tare weight measuring switch 27, it is possible for switch 27 to serve as a conventional tare key.
  • the tare weight measuring operation will now be described with reference to the flow chart in FIG. 9, which illustrates an example of the tare weight measuring operation.
  • weight measuring unit 1 of apparatus A in accordance with a modified embodiment of the invention, will be described below with reference to FIGS. 10 and 11.
  • This embodiment of the invention consists of apparatus A, equipped with one or more weight measuring sections besides weight measuring section 10.
  • Weight measuring section 15 is identified by a scale having a weighing scope which is larger than that of main weight measuring section 10, whereas in weight measuring section 16, the same scale as in main weight measuring section 10 is put in use.
  • Both weight measuring sections 15 and 16, as well as main weight measuring section 10, are connected to control mechanism 22 via switching circuit 60. Any one of weight measuring sections 10, 15, or 16 is connected to control mechanism 22 by means of switching device 60', which is adapted to actuate switching circuit 60.
  • Switching device 60' essentially comprises a main weight measuring key 61, a second weight measuring key 62, and a third weight measuring key 63, each of which is arranged in input control section 20; by depressing any one of keys 61, 62, and 63, the weight measuring section allocated thereto is connected to control mechanism 22 via switching circuit 60.
  • input control section 20 is equipped with weight measuring key 64, label preparing key 65, and label sticking key 66, each of which is connected to control section 223 of control mechanism 22.
  • Keys 64, 65, and 66 handle the operation and function of weight measuring sections 15 and 16, storage section 222 in control mechanism 22, and printing and labelling unit 30, by way of control section 20.
  • Keys 64, 65, and 66 may be replaced with switches.
  • weight measuring sections 15 and 16 when turning on weight measuring key 64, weight measuring sections 15 and 16 perform only the operational steps of measuring the weight of the commodity concerned and displaying, on display section 26, a computed selling price, while storing commodity data and keeping the operation of printing and labelling unit 30 in a prohibited condition; when turning on label preparing key 65, commodity data are stored and printing and labelling unit 30 performs the operations of label printing and displacement of the printed label; and furthermore, when turning on label sticking key 66, printing and labelling unit 30 performs the automatic sticking operation by which printed label 110 is adhesively stuck on packed commodity 100'.
  • weight measuring sections 15 and 16 Several examples of the operation of weight measuring sections 15 and 16 will be described as follows.
  • the second or third weight measuring keys 62 or 63 of switching device 60 is turned on, and at the same time weight measuring key 64 is also turned on. Thereafter, weight measuring is performed with commodity 100 placed on weight measuring section 15 or 16. In this case, packing section a and printing and labelling section 30 do not work.
  • the second weight measuring key 62 in switching device 60 is turned on, and at the same time label sticking key 66 is also turned on. Thereafter, weight measuring is performed with commodity 100 placed on weight measuring section 15.
  • commodity 100 is automatically conveyed onto inlet passage b, automatically packed in packing section a, and the printed label is finally adhesively stuck onto packed commodity 100' along outlet passage b'.
  • the third weight measuring key 63 in switching device 60' is turned on, and at the same time label preparing key 65 is turned on also. Thereafter, weight measuring is performed with commodity 100 placed on weight measuring section 16, label printing and preparing are then performed by printing and labelling unit 30, and printed label 110 is finally manually stuck onto commodity 100 by the operator.
  • label sticking key 66 is turned on instead of label preparing key 65, commodity 100 is weight measured at weight measuring section 16 and then displaced onto outlet passage b', and the prepared label is automatically stuck onto packed commodity 100' by means of label sticking device 34.
  • FIGS. 12 and 13 illustrate the switching device in accordance with another modified embodiment.
  • input control section 20' and printing and labelling unit 30' are constructed in such a way that they swing through a certain angle and are further provided with switching devices 68 and 70, which are adapted to be turned on or off by their swinging movement.
  • Switching device 68 is such that, when input control section 20' is swingably moved, only weight measuring section 15 is connected to control mechanism 22 via switching circuit 60.
  • Switching device 70 is such that, when printing and labelling unit 30 is swingably moved, only weight measuring section 16 is connected to control mechanism 22 via switching circuit 60.
  • Weight measuring key 64, label preparing key 65, and label sticking key 66 may be motivated by swinging movement of both input control section 20' and printing and labelling unit 30'.
  • switching circuit 60 may be such that the order of priority is previously given to respective weight measuring sections 10, 15, and 16; when input is received from the plural weight measuring sections at the same time, output data are inputted into control mechanism 22, preferably from the weight measuring section having the higher grade, in accordance with the order of priority.
  • tare weight measuring switch 27, totalling memory 224, detectors 42 and 44, and other elements are shown in the same manner as in FIG. 3, although some of the other elements have been omitted from these drawings.
  • Weight measuring unit 10 in accordance with the above-described modified embodiment, has advantageous features, in that any commodity having a weight which cannot be measured with apparatus A in accordance with the foregoing embodiment will be weighed by means of another weighing section, price computed, and then packed, and any commodity having dimensions in excess of the packing limit or not requiring for packing will be price computed without any accompanying packing operation, or will be merely weight measured.
  • increased versatility and improved operational productivity are ensured for the price computing and packing apparatus of the invention.
  • FIGS. 14-17 illustrate an improved label sticking means comprising printing and labelling unit 30.
  • height detecting means 120 is arranged along outlet passage b' of apparatus A so that the height of packed commodity 100' is measured relative to an inspection reference face, and thereafter the measured height is converted into an electrical signal.
  • a command is issued from control mechanism 22 in accordance with the electrical signal to displace printing and labelling unit 30 in an upward or downward direction by means of unit adjusting means 130, whereby the open distance between the lower part of printing and labelling unit 30, and the upper surface of packed commodity 100', is selectively adjusted to a predetermined value.
  • FIGS. 14 and 15 illustrate height detecting means 120 in accordance with the first and second embodiments.
  • Height detecting means 120 in FIG. 14 essentially comprises a plurality of light transmitting elements 121a-121g and a plurality of light receiving elements 122a-122g disposed on both sides of belt conveyor 10b' along outlet passage b', the light transmitting and receiving elements being located opposite to one another and the respective elements being arranged one above another at a right angle to the surface of outlet passage b' (in the vertical direction).
  • Outlet passage conveyor 10b' located in the vicinity of light transmitting elements 121a-121g and light receiving elements 122a-122g, serves as a first reference face 10b" on which the height of commodity 100', which is slidably supported on stationary base 124, is detected. Further, light receiving elements 122a-122g are connected to control mechanism 22 so that the existence of the received light is discriminated, and thereafter the height of packed commodity 100' is calculated relative to first reference face 10b".
  • height detecting means 120 in FIG. 15 essentially comprises contact piece 125 and detecting element 127.
  • Contact piece 125 comes into contact with packed commodity 100', which is conveyed on belt conveyor 10b' in the direction indicated by the arrow mark, while detecting element 127 (an optical element, magnetically-operated approach sensor, or the like, which is preferably kept away from direct contact with contact piece 125) is adapted to detect the rotation angle of contact piece 125 about axle 126, so that the height of packed commodity 100' relative to first reference face 10b" is measured by an electrical signal.
  • detecting element 127 an optical element, magnetically-operated approach sensor, or the like, which is preferably kept away from direct contact with contact piece 125
  • FIG. 16 illustrates unit adjusting means 130 in accordance with the first embodiment.
  • unit adjusting means 130 is provided with movable frame 133, which is movably supported by guide shafts 132, which stand upright on base 131.
  • Movable frame 133 contains screw shaft 134, the upper end of which is rotatably held therein in such a manner as not to move in an axial direction, and the lower end of which is received in a threaded hole in base 131.
  • the arrangement is made such that rotation of a step motor fixedly secured to movable frame 133 is transmitted to screw shaft 134, and movable frame 133 is fitted with printing and labelling unit 30 in such a manner that the bottom surface of the latter is located opposite to the second reference face 10b'" (the surface of belt conveyor 10b' in FIG. 16) relative to belt conveyor 10b'.
  • FIG. 17 illustrates a second embodiment of unit adjusting means 130.
  • pressure cylinder mechanism 136 (which is either hydraulically or pneumatically operated) is arranged between base 131 and printing and labelling unit 30, and is mounted and movable vertically above base 131 with the aid of guide shaft 132.
  • pressure cylinder 136 On receipt of a command from control mechanism 22, pressure cylinder 136 becomes effective in displacing printing and labelling unit 30 in the vertical direction such that the position of the latter is self-detected in the manner similar to the function of height detecting means 120, which is operated optically, or with the aid of the step number of a step motor.
  • the self-detecting means of printing and labelling unit 30, as described above, may be applied to the first embodiment, shown in FIG. 16.
  • the displacement of printing and labelling unit 30 may be steplessly adjusted, or adjusted stepwise.
  • the height of packed commodity 100', conveyed on outlet passage b' by means of belt conveyor 10b', is automatically measured with the use of height detecting means 120, and the measurement signal is delivered to control mechanism 22 to be temporarily stored therein.
  • the measurement signal is then transferred to unit adjusting means 130, so that, in the first embodiment in FIG. 16, step motor 135 rotates over a required angle in such a manner that the open distance between printing and labelling unit 30 and second reference face 10b" is set to the combined dimension of the height of packed commodity 100', plus the normal open distance for printing and labelling unit 30.
  • step motor 135 rotates over a required angle in such a manner that the open distance between printing and labelling unit 30 and second reference face 10b" is set to the combined dimension of the height of packed commodity 100', plus the normal open distance for printing and labelling unit 30.
  • printing and labelling unit 30 is displaced in the vertical direction by means of pressure cylinder 136, so as to determine the open distance between unit 30 and second reference face 10b'", and the result of the position detection for printing and labelling unit 30 is suitably checked by means of the control mechanism and, if it is not satisfactory, corrective operation is repeatedly performed until the required correct open distance is achieved.
  • label sticking is performed with the open distance between printing and labelling unit 30 and packed commodity 100' maintained at a predetermined amount at all times, irrespective of any change in height of the packed commodities; stabilized sticking force is achieved without any danger of dislocating a commodity 100' to be labelled; and continuous operation is effected without any interruption of the conveyance of packed commodities (operation may be, of course, effected with an interruption of conveyance of packed commodities).
  • FIG. 18 illustrates an improved label sticking means disposed on outlet passage b'.
  • a pair of guide plates 140 are located which are intended to locate packed commodities 100' in the transverse direction.
  • Guide plates 140 extend to the area below printing and labelling unit 30 in the longitudinal direction, while facing one another in the opposite relation.
  • Guide plates 140 are formed with inclined guide faces 141 at their upstream end, that is, at their front end, as seen from conveying direction x of packed commodity 100'.
  • Guide faces 141 extend divergently outwardly, so that conveyed commodity 100' is displaced and located in the required position by sliding on conveyor 10b', which is caused by a kind of "wedge" effect.
  • Locating devices 142 are arranged outside guide plates 140; the devices are adapted to displace the guide plates 140 in the transverse direction relative to belt conveyor 10b'.
  • Locating devices 142 essentially comprise screw shaft 143, having a forward end connected to guide plate 140; screw driving mechanism 144, for driving screw shaft 143 in the axial direction; and step motor 145, for rotating screw driving mechanism 144, and controlled by the control section in the housing of the apparatus.
  • a commodity detector 146 is located upstream of printing and labelling unit 30, and detects packed commodity 100' passing therethrough.
  • Commodity detector 146 comprises light-transmitting element 147 and light-receiving element 148, both of which protrude toward belt conveyor 10b'. Detector 146 is operated such that a light beam H from light-transmitting element 147 is interrupted by packed commodity 100', and this is detected by means of light-receiving element 148, whereby the latter outputs commodity detecting signal P 3 ' to control mechanism 22.
  • control mechanism 22 On receipt of commodity detecting signal P 3 ', control mechanism 22 outputs operating signal Q 2 from control section 223 to storage section 222 to transfer the commodity data from storage section 222 to printing section 32, while it outputs operating signal Q 3 to printing section 32 to perform the printing operation on the basis of the transferred data.
  • control mechanism 22 inputs commodity detecting signal P 3 ', and after a predetermined period of time elapses (the period of time being predetermined by means of a timer in the control section), it outputs operating signals Q 3 ' from control section 223 to label sticking section 34 to motivate the label sticking section.
  • the output timing of operating signal Q 3 ' is predetermined by the timer and is defined as the period of time that elapses before packed commodity 100' is conveyed to the area beneath label sticking device 34 by conveyor 10b', after detection at commodity detector 146.
  • commodity detector 146 is an improvement of commodity detector 44, particularly in regard to its location. Specifically, improved commodity detector 146 performs commodity detection at a position upstream of printing and labelling unit 30 in order to motivate printing section 32, so that printed label 110 is prepared and held below label sticking device 34, and when packed commodity 100' reaches label sticking device 34, the intended label sticking operation is performed.
  • the arrangement of commodity detector 146 in this way makes it possible to carry out label sticking, as well as automatic label sticking, without any interruption of packed commodities 100'.
  • both step motors 145 are operated to adjust the position of both guide plates 140 in order that label sticking position L will be properly located for the packed commodity and relative to conveyor 10b'.
  • label 110 After packed commodity 100' is conveyed on belt conveyor 10b' and detected by commodity detector 146, label 110, with the required data concerning the commodity printed thereon by printing section 32 in printing and labelling unit 30, is prepared and held by label sticking device 34 in the abovementioned manner. Then, after a predetermined period of time elapses after commodity detection, label sticking device 34 is operated to stick label 110 onto label sticking location L of packed commodity 100'.
  • packed commodity 100' is conveyed to a location, as illustrated in the drawing. If packed commodity 100' is dislocated in the transverse direction relative to belt conveyor 10b', its corner part comes into contact with one of the inclined guide faces 141 of guide plates 140; thereby, corrective operation is effected, so as to allow it to pass between both guide plates 140, and it is located therebetween such that its longitudinal direction extends at a right angle to conveying direction x, while it is brought in contact with the parallel faces of guide plates 140.
  • the label printing time is defined as a time when commodity detecting signal P 3 ' is outputted from commodity detector 146, and operating signals Q 2 and Q 3 are outputted from control section 223.
  • the label printing time may occur when weight measuring signal P is outputted in the above-described manner.
  • step motor 145 may be replaced with a conventional electric motor or hydraulic cylinder.
  • detector 146 for detecting packed commodity 100', may be integrally secured to guide plate 140.
  • the apparatus in accordance with the embodiment illustrated in FIG. 18 ensures that a printed label is precisely stuck onto the packed commodity in the intended labelling position, and the labelling operation is performed with packed commodities continuously conveyed, while both the guide plates are located in a predetermined position. As a result, increased labelling efficiency is achieved.
  • FIG. 19 illustrates a label sticking means in accordance with a modified embodiment which is very similar to that of FIG. 18.
  • commodity detector 146 comprises essentially a light-transmitting element 147 and a light-receiving element 148, which are arranged on guide plates 140.
  • guide plate locating devices 142 contain base board 150, which is displaceably supported on rails 151 in parallel fashion to belt conveyor 10b'.
  • Base board 150 contains feed screw 152, the front end of which is connected to base board 150.
  • Feed screw 152 is operatively supported by means of screw driving mechanism 153 such that it is displaceable over a certain distance by sound step motor 154.
  • guide plates 140 are adjustably arranged in the longitudinal and trnsverse directions relative to belt conveyor 10b'.
  • guide plates 140 are provided with stoppers 155 at the downstream end in the vicinity of printing and labelling unit 30. Stopper 155 is adapted to protrude above belt conveyor 10b'.
  • Stopper 155 is constructed such that plunger 157 is protruded inwardly by solenoid 156, which is located outside of guide plate 140 for temporarily interrupting the movement of the commodity by engaging the front end of packed commodity of 100' thereagainst.
  • Solenoid 156 of stopper 155 is connected to commodity detector 146. As it outputs detecting signal P 3 ', solenoid 156 is energized, and plunger 157 protrudes inwardly of guide plate 140. As a result, packed commodity 100' comes to a temporary stop.
  • label sticking device 34 of printing and labelling unit 30 performs the label sticking operation.
  • solenoid 156 of stopper 155 is released, so that plunger 157 is restored to its original state by a resilient spring contained in plunger 157.
  • packed commodity 100' is ready to be conveyed again.
  • Stopper 155 may be operated by a pneumatic cylinder instead of by solenoid 156. Where displacement and location of guide plates 140 and base plates 150 need to be exactly adjusted, they may be operated by a conventional electrical motor or hydraulic cylinder.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Labeling Devices (AREA)
US06/236,721 1980-02-26 1981-02-23 Weight measuring, price computing and packing apparatus Expired - Lifetime US4415048A (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP55-23601 1980-02-26
JP2360180A JPS56123232A (en) 1980-02-26 1980-02-26 Label printing pasting device in commodity packing
JP55-147061 1980-10-21
JP14706180A JPS5777433A (en) 1980-10-21 1980-10-21 Pasting device for label
JP55-152730 1980-10-30
JP15273180A JPS5777431A (en) 1980-10-30 1980-10-30 Pasting device for label
JP15273080A JPS5777435A (en) 1980-10-30 1980-10-30 Pasting device for label
JP55-152731 1980-10-30

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DE (3) DE3153352C2 (sv)
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DE3106494C2 (sv) 1990-04-12
DE3106494A1 (de) 1982-01-14
SE8101073L (sv) 1981-08-27
GB2076549B (en) 1984-07-25
DE3153352C2 (sv) 1991-01-24
SE446226B (sv) 1986-08-18
DE3153353C2 (sv) 1989-09-28
GB2076549A (en) 1981-12-02

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